Vibrational analysis of p-tert-butyl-calix[4]arene conformers by ab initio calculations
Yazarlar (3)
Afsaneh Amiri
Islamic Azad University, İran
Farzaneh Babaeie Islamic Azad University, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, İran
Makale Türü Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Physics and Chemistry of Liquids
Dergi ISSN 0031-9104 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 01-2008
Cilt / Sayı / Sayfa 46 / 4 / 379–389 DOI 10.1080/00319100701344610
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-49049093642&partnerID=MN8TOARS
Özet
Band frequencies and intensities in the IR spectra of calix[4]arene have been calculated. Ab initio calculations at HF/6-311G (d, p) level gave vibrational frequencies and infrared intensities for four conformers: cone, partial cone, 1,2- and 1,3-alternate. The geometry optimization has been performed in the basis of C2 symmetry frame of p-tert-butyl-calix[4]arene as a calculation input because it contains no imaginary vibrational frequencies. Additionally the experimental IR spectra of the p-tert-butyl-calix[4]arene were measured and related to the theoretical geometric parameters and force constants. The bands characteristic for each conformation and its reference with respect to specially the OH stretching were defined. Finally we discuss the possibility of hydrogen bonding stability of conformers were discussed.
Anahtar Kelimeler
Calixarenes | Conformations | IR spectra | Normal vibrations
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 16
Scopus 33
Vibrational analysis of p-tert-butyl-calix[4]arene conformers by ab initio calculations

Paylaş